| Affiliation: | 1. Division of Gastroenterology and Hepatology, Portland VA Medical Center, Oregon Health & Science University, Portland, OR, USA;2. Division of Gastroenterology and Hepatology, Center for Esophageal Diseases and Swallowing, University of North Carolina School of Medicine, Chapel Hill, NC, USA;3. Division of Gastroenterology and Hepatology, Center for Gastrointestinal Biology and Disease, University of North Carolina School of Medicine, Chapel Hill, NC, USA;4. Miraca Life Sciences, Irving, TX, USA;5. Baylor College of Medicine, Houston, TX, USA |
